background: this study investigated the effects of lignosus rhinocerotis (lrs) supplementation and resistance training (rt) on isokinetic muscular strength and power, anaerobic and aerobic fitness, and immune parameters in young males. methods: participants were randomly assigned to four groups: control (c), lrs, rt, and combined rt-lrs (rt-lrs). participants in the lrs and rt-lrs groups consum...

A linear piston hydraulic angular-velocity-based control knee joint was designed for people with knee-extensor weakness to engage knee-flexion resistance when knee-flexion angular velocity reaches a preset threshold, such as during a stumble, but to otherwise allow free knee motion. During mechanical testing at the lowest angular-velocity threshold, the device engaged within 2 degrees knee flex...

Introduction Patellofemoral pain syndrome (PFPS) is common in runners and is often related to excessive rearfoot eversion. Increased eversion is known to be associated with increased knee flexion, internal rotation, and reduced adduction [1]. Therefore, our purpose was to investigate coupling between the foot and knee in runners with PFPS. We hypothesized that the PFPS group would display large...

Although the movement of the leg during swing phase is often compared to the unforced motion of a compound pendulum, the muscles of the leg are active during swing and presumably influence its motion. To examine the roles of muscles in determining swing phase knee flexion, we developed a muscle-actuated forward dynamic simulation of the swing phase of normal gait. Joint angles and angular veloc...

BACKGROUND Knee models often do not contain thigh-calf contact which occurs in deep knee flexion. Thigh-calf contact is expected to reduce muscle forces and thereby affects internal stresses in the knee joint. The purpose of this study was to measure thigh-calf contact forces. Two deep knee flexion activities were selected: squatting and kneeling. METHODS Ten healthy subjects participated in ...

BACKGROUND Anterior cruciate ligament (ACL) injury is the most common sports injury in both athletes and nonathletes; it can cause disability if not treated correctly. In cases with minor injuries, conservative treatments suffice. But, in cases with ACL tear, surgery by different methods and autografts are indicated. The most prevalent method for ACL reconstruction is the use of hamstring tendo...

172 Cerebral palsy (CP) is the most common cause of children's disability in Western Europe. Children with the spastic type of CP, which is the most common type of motor disorders, show impairments such as spasticity, muscle weakness, and a decreased selective motor control. These impairments lead to decreased motor function, and accordingly, these children experience gait-related problems. The...

Background: The patient's position during the recovery time after arthroplasty surgery can be a factor in reducing complications and improving patients’ condition. Therefore, this study was performed to compare the knee range of motion after soft tissue repair in both flexion and extension positions of total knee arthroplasty. Methods: This study is a double-blind clinical trial. The study pop...

Recently, high-flexion knee implants have been developed to provide for a large range of motion (ROM>120 degrees ) after total knee arthroplasty (TKA). Since knee forces typically increase with larger flexion angles, it is commonly assumed that high-flexion knee implants are subjected to larger loads than conventional knee implants. However, most high-flexion studies do not consider thigh-calf ...

Introduction Iliotibial band friction syndrome (ITBFS) is one of the common painful condition due to inflamation of distal portion of iliotibial band which presents in lateral side of the knee. Repetetive movements of flexion and extension during exercise as well as excessive friction of distal iliotibial band results in its irritation and inflamation, as it slides over lateral femoral epicondy...